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WorksheetsGenetics
Total questions: 39
Worksheet time: 32mins
Name
Class
Date
1.
The man who studied genetics and came up with genetics is
a)
Watson
b)
Crick
c)
Mendel
d)
Darwin
2.
Genotype refers to the ...
a)
physical expression of the genes
b)
the possible combination of alleles in a gene
c)
whether an allele is dominant or recessive
d)
how an organism will appear
3.
Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?
a)
Purebred
b)
Hybrid
4.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
5.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
6.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
7.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
8.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
9.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
10.
Magda is a tall, 11 year old drummer. She has a scar on her right cheek. She is good at swimming. Which of her traits did Magda most likely inherit?
a)
height
b)
the scar
c)
ability to swim
d)
ability to play drums
11.
G = green, g = yellow
The genotype for a yellow plant is...
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
12.
Which of the following genotypes is a purebred?
a)
Bb
b)
Gg
c)
bb
d)
Dd
13.
Which of the following genotypes would be considered heterozygous?
a)
BB
b)
gg
c)
Ff
d)
TT
14.
Which of the following is a phenotype?
a)
Bb
b)
Black fur
15.
What is the percentage of offspring that have green pods?
a)
100%
b)
75%
c)
50%
d)
25%
16.
What is a phenotype?
a)
The expression of a trait; physical appearance.
b)
refers to the genetic makeup of an individual
c)
An organism that has the same genes for a trait (ex. TT or tt)
d)
the passing of traits from parent to offspring
17.
What does heterozygous mean?
a)
An organism that has the same genes for a trait (TT or tt)
b)
An organism that has different genes for a trait (Tt)
c)
When neither gene is fully dominant; offspring is a mixture of both
d)
the different forms of a trait (hair color--> brown, blonde, red
18.
A human usually has _____ total chromosomes in the somatic cells.
a)
6
b)
22
c)
4
d)
46
19.
Which of the following alleles is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
20.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
21.
one set of instructions for an inherited trait
a)
heredity
b)
allele
c)
trait
d)
gene
22.
the chances of something happening
a)
dominant
b)
genotype
c)
phenotype
d)
probability
23.
The cells produced via meiosis are called:
a)
sex cells
b)
somatic cells
c)
body cells
d)
skin cells
24.
Unlike mitosis, meiosis in male mammals results in the formation of
a)
one haploid gamete
b)
three diploid gametes
c)
four diploid gametes
d)
four haploid gametes
25.
How many daughter cells are produced from meiosis ?
a)
10
b)
6
c)
4
d)
2
26.
Human eggs and sperm are _____, and each has ____ chromosomes.
a)
diploid, 23
b)
diploid, 46
c)
haploid, 23
d)
haploid, 46
27.
How are your chromosomes inherited?
a)
most of your chromosomes from your mother
b)
most of your chromosomes from your father
c)
a random number of chromosomes from each parent
d)
half your chromosomes from your mother and half from your father.
28.
Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.
a)
23, 46
b)
46, 23
c)
2, 4
d)
50, 100
29.
The products of meiosis are genetically...
a)
different.
b)
identical.
30.
When one allele is NOT completely dominant over the other - blending of two traits
a)
Codominance
b)
Complete dominance
c)
incomplete dominance
d)
none of these
31.
condition in which both alleles for a gene are expressed when present - both traits are visible
a)
Codominance
b)
Dominance
c)
Complete dominance
d)
Incomplete dominance
32.
this image is an example of
a)
codominance
b)
dominance
c)
incomplete dominance
33.
Hair color is an inherited or acquired trait?
a)
inherited
b)
acquired
34.
inherited or acquired trait?
a)
inherited
b)
acquired
35.
This is an example of ___________?
a)
Incomplete dominance
b)
Co-Dominance
36.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Co dominance
37.
This is an example of ___________.
a)
Incomplete Dominance
b)
Codominance
38.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
39.
If you cross a black chicken with a white chicken, only checkered chickens would be produced. What kind of inheritance pattern does this follow?
a)
incomplete Dominance
b)
Co-Dominance
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